Recall 21016 Rear Axle Drive Pinion May Fracture – 2021-2022 Spartan Fire Gladiator, MetroStar, & MetroStar-RT

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Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 1 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. DATE: 3/30/2022 APPLIES TO: This Recall service bulletin applies to certain 2020 through 2022 model year, Gladiator, Metro Star and FC-94 model emergency response chassis cabs built between August 2020 and February 2022. NHTSA/TC Id: 21V-899 / TC2021-737 CONDITION: Drive Axle Pinion Shaft May Fracture at Splines CORRECTION: Replace Differential Carrier Assembly LABOR ALLOCATION: 5 hours CLASSIFICATION: V3 PARTS NEEDED: Parts to be provided direct from Meritor GENERAL INSTRUCTIONS: Thoroughly review entire service bulletin before starting work. If there are questions or concerns with steps defined in this service bulletin, contact Spartan Fire, LLC. Customer & Product Support Group. All applicable industry safety standards must be followed when performing work identified in this procedure. Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 2 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. STEP-BY-STEP INSTRUCTIONS: 1) Repair facility to record the following information and submit with claim to Meritor Ontrac. ▪ Full VIN number ▪ In Service Date ▪ Vehicle Mileage ▪ Axle Model Number ▪ Axle Serial Number 2) The repair facility will open a case with Meritor’s Ontrac Technical Call Center at 1-866-668-7221 3) The Ontrac Technical Call Center will verify the VIN is part of the campaign population. 4) Meritor will order the replacement parts (carrier with driveline yoke, carrier to housing kit, and replacement driveline fastener kits) to be shipped to the repair facility free of charge. 5) Once the repair facility receives the parts to complete the carrier replacement, they can schedule the replacement with the customer. Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 3 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. 6) Remove carrier per instructions starting below. (Reference: Meritor’s Maintenance Manual MM5a page 7) Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 4 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. (Reference: Meritor’s Maintenance Manual MM5a page 8) Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 5 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. (Reference: Meritor’s Maintenance Manual MM5a page 9) Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 6 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. 7) Begin installation of replacement carrier using instructions below (Reference: Meritor’s Maintenance Manual MM5a page 53) Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 7 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. Section 8 Torque Fastener # Desc Thread Size lb-ft NM Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 8 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. (Reference: Meritor’s Maintenance Manual MM5a page 54) Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 9 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. Driveshaft U-Joint Torque Specifications Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 10 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. (Reference: Meritor’s Maintenance Manual MM5a page 55) Recall Service Bulletin Recall Service Bulletin RSB21-340-001 Page 11 of 11 QUA-FR-0291 Rev: 4.0 21016 Service Bulletins are intended for use by Professional Technicians only. They are written to guide Professional Technicians in performing service to vehicles of specific nature in conjunction with industry standards. Professional Technicians are appropriately trained on industry standards and have the tools and equipment to perform procedures safely and properly. 8) When the replacement is completed, the repair facility will need to call back to the Ontrac Technical Call center @ 1-866-668-7221 to complete the open case. 9) Meritor will complete the case for labor and other materials that were used in the replacement and reimburse the repair facility. 10) Meritor will setup a return shipment of the removed carrier to be shipped back to Meritor.

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Spartan Fire, LLC May 10, 2022 IMPORTANT SAFETY RECALL – 21V-899 This notice applies to the vehicle identification number below. 4S9AU2E91LC560128 SPARTAN MOTORS , MI Dear Valued Customer, This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Spartan Fire, LLC has decided that a defect which relates to motor vehicle safety exists in certain model year 2020-2022, Gladiator, MetroStar and FC-94 model emergency response chassis cabs, equipped with Meritor Series 180 Axle Pinion Shaft. Please note: The Vehicle Identification Number that may be affected by this recall is located at the top of this letter. What is the defect? It has been reported that some Meritor drive pinion 180 series axles may be fractured in the pinion spline. If this defect exists, the fracturing of the pinion may hit the brake drop hose which may unintentionally apply the parking brake without detection or brake lights coming on, possibly resulting in a crash. The issue could occur without warning. This was caused by a variation in the pinion spline tooling geometry of the Meritor process. The affected item is the Meritor Series 180 Axle Pinion Shaft. Corrective Action: Contact your local Dealer or repair facility for assistance with facilitating the repair. The repair facility will need to open a case with Meritor’s OnTrac Technical Call Center to verify the truck is affected by this campaign. If it is determined that the truck is affected, Meritor will inform the repair facility and Spartan that the Differential Carrier Assembly will need to be replaced and order parts for replacement. Once the repair facility receives the parts for the replacement Carrier, the repair facility can schedule the replacement with the customer. The repair will take approximately 5 hours to complete. There is no cost to the vehicle owner for the recall remedy. Meritor is providing, free of charge, the necessary components to rectify the issue and will pay labor costs for replacing the included components that have not already been replaced during normal maintenance. Spartan Fire, LLC Labor Time: The repair will take approximately 5 hours to complete. What You Should Do: Owners should contact your local Dealer or repair facility to open a case with Meritor’s OnTrac Technical Call Center number @1-866-668-7221. If you need further assistance with this notification and cannot locate a dealer, call Spartan at 1-800-867-6478 to help direct you to your nearest dealer or service provider for repair. Leased Vehicles: The lessor must notify the lessee by first class mail within ten (10) days from receipt of their owner notification letter from the manufacturer; both for the initial notification and all subsequent notifications. Reimbursement: If you had this repair performed before you received this letter, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification remedy of the problem associated with this recall. For more information contact Spartan at 1‐800‐867-6478. Information Change: If you have changed your address, sold or traded your vehicle, please email us at Firetruckservice@spartanmotors.com to provide updated information. If the authorized service center has failed or is unable to remedy the defect without charge and within a reasonable time, contact Spartan at 1-800-867-6478. You may also submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, D.C. 20590 or call the Auto Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov if you feel the manufacturer has failed or is unable to remedy the defect without charge. We regret any inconvenience this service may cause you. Your safety and continued satisfaction with the quality and performance of your chassis is of the utmost concern to us. Sincerely, Spartan Fire, LLC

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Spartan Fire, LLC April 11, 2022 IMPORTANT SAFETY RECALL – 21V-899 This notice applies to the vehicle identification number below. 4S9CU2D92MC560151 ORCHARD PARK FIRE COMPANY 4222 Taylor Rd ORCHARD PARK, NY 14127 Dear Valued Customer, This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Spartan Fire, LLC has decided that a defect which relates to motor vehicle safety exists in certain model year 2020-2022, Gladiator, MetroStar and FC-94 model emergency response chassis cabs, equipped with Meritor Series 180 Axle Pinion Shaft. Please note: The Vehicle Identification Number that may be affected by this recall is located at the top of this letter. What is the defect? It has been reported that some Meritor drive pinion 180 series axles may be fractured in the pinion spline. If this defect exists, the fracturing of the pinion may hit the brake drop hose which may unintentionally apply the parking brake without detection or brake lights coming on, possibly resulting in a crash. The issue could occur without warning. This was caused by a variation in the pinion spline tooling geometry of the Meritor process. The affected item is the Meritor Series 180 Axle Pinion Shaft. Corrective Action: Contact your local Dealer or repair facility for assistance with facilitating the repair. The repair facility will need to open a case with Meritor’s OnTrac Technical Call Center to verify the truck is affected by this campaign. If it is determined that the truck is affected, Meritor will inform the repair facility and Spartan that the Differential Carrier Assembly will need to be replaced and order parts for replacement. Once the repair facility receives the parts for the replacement Carrier, the repair facility can schedule the replacement with the customer. The repair will take approximately 5 hours to complete. There is no cost to the vehicle owner for the recall remedy. Meritor is providing, free of charge, the necessary components to rectify the issue and will pay labor costs for replacing the included components that have not already been replaced during normal maintenance. Spartan Fire, LLC Labor Time: The repair will take approximately 5 hours to complete. What You Should Do: Owners should contact your local Dealer or repair facility to open a case with Meritor’s OnTrac Technical Call Center number @1-866-668-7221. If you need further assistance with this notification and cannot locate a dealer, call Spartan at 1-800-867-6478 to help direct you to your nearest dealer or service provider for repair. Leased Vehicles: The lessor must notify the lessee by first class mail within ten (10) days from receipt of their owner notification letter from the manufacturer; both for the initial notification and all subsequent notifications. Reimbursement: If you had this repair performed before you received this letter, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification remedy of the problem associated with this recall. For more information contact Spartan at 1‐800‐867-6478. Information Change: If you have changed your address, sold or traded your vehicle, please email us at Firetruckservice@spartanmotors.com to provide updated information. If the authorized service center has failed or is unable to remedy the defect without charge and within a reasonable time, contact Spartan at 1-800-867-6478. You may also submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, D.C. 20590 or call the Auto Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov if you feel the manufacturer has failed or is unable to remedy the defect without charge. We regret any inconvenience this service may cause you. Your safety and continued satisfaction with the quality and performance of your chassis is of the utmost concern to us. Sincerely, Spartan Fire, LLC

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Spartan Fire, LLC January 3, 2022 IMPORTANT SAFETY RECALL – 21V-899 This notice applies to the vehicle identification number below. 4S9CV2D92MC Butler Township Vol Fire Dist 121 Sparks Ave Butler, PA 16001 Dear Valued Customer, This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Spartan Fire, LLC has decided that a defect which relates to motor vehicle safety exists in certain model year 2021-2022, Gladiator, MetroStar, and MetroStar-RT model emergency response chassis cabs, equipped with Meritor Series 180 Axle Pinion Shaft. Please note: The Vehicle Identification Number that may be affected by this recall is located at the top of this letter. What is the defect? It has been reported that some Meritor drive pinion 180 series axles may be fractured in the pinion spline. If this defect exists, the fracturing of the pinion may hit the brake drop hose which may unintentionally apply the parking brake without detection or brake lights coming on, possibly resulting in a crash. The issue could occur without warning. This was caused by a variation in the pinion spline tooling geometry of the Meritor process. The affected item is the Meritor Series 180 Axle Pinion Shaft. Corrective Action: A Meritor representative will contact you to schedule the axle pinion inspection and repair as needed. The inspection will need to be performed with a service technician and Meritor representative. The inspection will take approximately 1 hour. If it is determined that the pinion is fractured, Meritor will inform you and Spartan that the Differential Carrier Housing Assembly will need to be replaced. Contact your local Dealer for assistance with facilitating the repair. The repair will take approximately 5 hours to complete. There is no cost to the vehicle owner for the recall remedy. Spartan Fire, LLC Meritor and/or Spartan will contact all owners of these units that are affected by this recall. They will be directed to the appropriate service provider for repair. Spartan and Meritor are providing, free of charge, the necessary components to rectify the issue and will pay labor costs for inspecting and replacing the included components that have not already been replaced during normal maintenance. Labor Time: The inspection will take approximately 1 hour. If replacement is needed, the repair will take approximately 5 hours to complete. What You Should Do: If you receive this notification, Meritor and/or Spartan will contact all owners of these units that are affected by this recall. Owners will be directed to the appropriate service provider for repair. Leased Vehicles: The lessor must notify the lessee by first class mail within ten (10) days from receipt of their owner notification letter from the manufacturer; both for the initial notification and all subsequent notifications. Reimbursement: If you had this repair performed before you received this letter, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification remedy of the problem associated with this recall. For more information contact Spartan at 1‐800‐867-6478. Information Change: If you have changed your address, sold or traded your vehicle, please email us at Firetruckservice@spartanmotors.com to provide updated information. If the authorized service center has failed or is unable to remedy the defect without charge and within a reasonable time, contact Spartan at 1-800-867-6478. You may also submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, D.C. 20590 or call the Auto Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov if you feel the manufacturer has failed or is unable to remedy the defect without charge. We regret any inconvenience this service may cause you. Your safety and continued satisfaction with the quality and performance of your chassis is of the utmost concern to us. Sincerely, Spartan Fire, LLC

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Spartan Fire, LLC April 11, 2022 IMPORTANT SAFETY RECALL – 21V-899 This notice applies to the vehicle identification number below. 4S9CV2D92MC560311 Butler Township Vol Fire Dist 121 Sparks Ave Butler, PA 16001 Dear Valued Customer, The remedy has been updated, this is an important change to your recall notice sent in January 2022. This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Spartan Fire, LLC has decided that a defect which relates to motor vehicle safety exists in certain model year 2020-2022, Gladiator, MetroStar, and FC-94 model emergency response chassis cabs, equipped with Meritor Series 180 Axle Pinion Shaft. Please note: The Vehicle Identification Number that may be affected by this recall is located at the top of this letter. What is the defect? It has been reported that some Meritor drive pinion 180 series axles may be fractured in the pinion spline. If this defect exists, the fracturing of the pinion may hit the brake drop hose which may unintentionally apply the parking brake without detection or brake lights coming on, possibly resulting in a crash. The issue could occur without warning. This was caused by a variation in the pinion spline tooling geometry of the Meritor process. The affected item is the Meritor Series 180 Axle Pinion Shaft. Corrective Action: Contact your local Dealer or repair facility for assistance with facilitating the repair. The repair facility will need to open a case with Meritor’s OnTrac Technical Call Center to verify the truck is affected by this campaign. If it is determined that the truck is affected, Meritor will inform the repair facility and Spartan that the Differential Carrier Assembly will need to be replaced and order parts for replacement. Once the repair facility receives the parts for the replacement Carrier, the repair facility can schedule the replacement with the customer. The repair will take approximately 5 hours to complete. There is no cost to the vehicle owner for the recall remedy. Meritor is providing, free of charge, the necessary components to rectify the issue and will pay labor costs for replacing the included components that have not already been replaced during normal maintenance. Spartan Fire, LLC Labor Time: The repair will take approximately 5 hours to complete. What You Should Do: Owners should contact your local Dealer or repair facility to open a case with Meritor’s OnTrac Technical Call Center number @1-866-668-7221. If you need further assistance with this notification and cannot locate a dealer, call Spartan at 1-800-867-6478 to help direct you to your nearest dealer or service provider for repair. Leased Vehicles: The lessor must notify the lessee by first class mail within ten (10) days from receipt of their owner notification letter from the manufacturer; both for the initial notification and all subsequent notifications. Reimbursement: If you had this repair performed before you received this letter, you may be eligible to receive reimbursement for the cost of obtaining a pre-notification remedy of the problem associated with this recall. For more information contact Spartan at 1‐800‐867-6478. Information Change: If you have changed your address, sold or traded your vehicle, please email us at Firetruckservice@spartanmotors.com to provide updated information. If the authorized service center has failed or is unable to remedy the defect without charge and within a reasonable time, contact Spartan at 1-800-867-6478. You may also submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, D.C. 20590 or call the Auto Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov if you feel the manufacturer has failed or is unable to remedy the defect without charge. We regret any inconvenience this service may cause you. Your safety and continued satisfaction with the quality and performance of your chassis is of the utmost concern to us. Sincerely, Spartan Fire, LLC

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-899 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Spartan Fire, LLC Submission Date : MAR 04, 2022 NHTSA Recall No. : 21V-899 Manufacturer Recall No. : 21016 Manufacturer Information : Manufacturer Name : Spartan Fire, LLC Address : 1541 Reynolds Road Charlotte MI 48813 Company phone : 517-588-4700 Population : Number of potentially involved : 170 Estimated percentage with defect : 25 % Vehicle Information : Vehicle 1 : 2020-2022 Spartan Fire Gladiator and MetroStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The basis for this recall population is vehicles equipped with a Meritor drive pinion built in a 180 axle series. Meritor provided an affected rear axle serial number list that was cross-referenced with Spartan Fire’s databases to determine the affected population. Quantity 6 – 2020 Gladiator trucks affected. Quantity 10 – 2020 MetroStar trucks affected. Quantity 69 – 2021 Gladiator trucks affected. Quantity 59 – 2021 MetroStar trucks affected. Quantity 9 – 2022 Gladiator trucks affected. Quantity 17 – 2022 MetroStar trucks affected. Production Dates : AUG 20, 2020 – FEB 01, 2022 VIN Range 1 : Begin : 4S9BEFUB8LS419947 End : 4S9CU2D92MC560263 Not sequential Description of Defect : Description of the Defect : Meritor drive pinion 180 series fractured in the spline. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If this condition exists, the fracture of the pinion may hit the brake drop hose which may unintentionally apply parking brake without detection or brake lights coming on, possibly resulting in a crash. Description of the Cause : There was a variation in the pinion spline tooling geometry of the Meritor process. Part 573 Safety Recall Report 21V-899 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Identification of Any Warning that can Occur : The issue could occur without warning. Involved Components : Component Name 1 : Rear Axle Carrier Component Description : Pinion Shaft Component Part Number : 180 Series Supplier Identification : Component Manufacturer Name : Meritor Address : 22021 Skyway Church Rd Maxton North Carolina 28364 Country : United States Chronology : June 2020 – Pinion crack found on campus in Charlotte during a different PSR. August – September 2020 – They completed tests to attempt to replicate and could not reproduce the fracture. Implemented 100% mag particle inspection on all 186R series. Meritor Product Engineering provided a high confidence level that this would be an infancy failure (during the carriers first high load event) due to the fracture signature. April 2021 – Claim created through standard warranty process for pinion crack. July 2021 – Pinion failure during delivery to the dealer from the plant. Facilitated warranty claim through Meritor, they provided new gear set. September 2021 – Houston reached out regarding a pinion crack failure while in service (24 hours in service and under 3,000 miles), was second truck of fleet with similar failure. Pinion broke off and damaged the spring brake air supply line. Metro and Houston insisted an inspection method to validate that the rest of the fleet do not have the same failures. This resulted in Meritor completing an on-site ultrasonic test for the rest of the fleet. Meritor provided corrective action and containment dates, as well as their assessment that this issue is low risk. October 2021 – Spartan risk assessment completed. October – November 2021 – Reviewed past precedence. Reached out to all REV Fire businesses to check for any Meritor pinion warranty issues. E-One had one failure in the field in October 2021 but a different axle series affected. Met with Meritor to review the cause again and the potential affected population. November 10, 2021 – Escalated the issue to REV Group Management. Part 573 Safety Recall Report 21V-899 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 November 15, 2021 – REV’s senior leadership approved a voluntary recall for this issue. February 14, 2022 – Meritor expanded the date range of affected population. Description of Remedy : Description of Remedy Program : Meritor will work with the customer and repair facility to determine if the vehicle is affected. If repair is needed, the Differential Carrier Assembly will be replaced. The replacement will be done at no charge. This will be covered under the normal warranty process. How Remedy Component Differs from Recalled Component : N/A Identify How/When Recall Condition was Corrected in Production : Meritor has implemented a corrective action of tooling implementation in their production facility as of August 2021. Recall Schedule : Description of Recall Schedule : Spartan to notify Dealers by week of March 28, 2022 and the owners a week later. Planned Dealer Notification Date : MAR 28, 2022 – APR 01, 2022 Planned Owner Notification Date : APR 04, 2022 – APR 15, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-899 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Spartan Fire, LLC Submission Date : APR 11, 2022 NHTSA Recall No. : 21V-899 Manufacturer Recall No. : 21016 Manufacturer Information : Manufacturer Name : Spartan Fire, LLC Address : 1541 Reynolds Road Charlotte MI 48813 Company phone : 517-588-4700 Population : Number of potentially involved : 260 Estimated percentage with defect : 25 % Vehicle Information : Vehicle 1 : 2020-2022 Spartan Fire Gladiator, MetroStar and FC-94 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The basis for this recall population is vehicles equipped with a Meritor drive pinion built in a 180 axle series. Meritor provided an affected rear axle serial number list that was cross-referenced with Spartan Fire’s databases to determine the affected population. Quantity 20 – 2020 Gladiator trucks affected. Quantity 24 – 2020 MetroStar trucks affected. Quantity 80 – 2021 Gladiator trucks affected. Quantity 68 – 2021 MetroStar trucks affected. Quantity 29 – 2022 Gladiator trucks affected. Quantity 32 – 2022 MetroStar trucks affected. Quantity 7 – 2022 FC-94 trucks affected. Production Dates : AUG 10, 2020 – MAR 30, 2022 VIN Range 1 : Begin : 4S9BEEUA5LS419941 End : 4S9BEETA4NS559810 Not sequential Description of Defect : Description of the Defect : Meritor drive pinion 180 series fractured in the spline. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If this condition exists, the fracture of the pinion may hit the brake drop hose which may unintentionally apply parking brake without detection or brake lights coming on, possibly resulting in a crash. Part 573 Safety Recall Report 21V-899 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Description of the Cause : There was a variation in the pinion spline tooling geometry of the Meritor process. Identification of Any Warning that can Occur : The issue could occur without warning. Involved Components : Component Name 1 : Rear Axle Carrier Component Description : Pinion Shaft Component Part Number : 180 Series Supplier Identification : Component Manufacturer Name : Meritor Address : 22021 Skyway Church Rd Maxton North Carolina 28364 Country : United States Chronology : June 2020 – Pinion crack found on campus in Charlotte during a different PSR. August – September 2020 – They completed tests to attempt to replicate and could not reproduce the fracture. Implemented 100% mag particle inspection on all 186R series. Meritor Product Engineering provided a high confidence level that this would be an infancy failure (during the carriers first high load event) due to the fracture signature. April 2021 – Claim created through standard warranty process for pinion crack. July 2021 – Pinion failure during delivery to the dealer from the plant. Facilitated warranty claim through Meritor, they provided new gear set. September 2021 – Houston reached out regarding a pinion crack failure while in service (24 hours in service and under 3,000 miles), was second truck of fleet with similar failure. Pinion broke off and damaged the spring brake air supply line. Metro and Houston insisted an inspection method to validate that the rest of the fleet do not have the same failures. This resulted in Meritor completing an on-site ultrasonic test for the rest of the fleet. Meritor provided corrective action and containment dates, as well as their assessment that this issue is low risk. October 2021 – Spartan risk assessment completed. October – November 2021 – Reviewed past precedence. Reached out to all REV Fire businesses to check for any Meritor pinion warranty issues. E-One had one failure in the field in October 2021 but a different axle series affected. Met with Meritor to review the cause again and the potential affected population. Part 573 Safety Recall Report 21V-899 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 November 10, 2021 – Escalated the issue to REV Group Management. November 15, 2021 – REV’s senior leadership approved a voluntary recall for this issue. February 14, 2022 – Meritor expanded the date range of affected population. April 4, 2022 – Meritor expanded the date range again for the affected population. Reference 22E027. Description of Remedy : Description of Remedy Program : Meritor will work with the customer and repair facility to determine if the vehicle is affected. If repair is needed, the Differential Carrier Assembly will be replaced. The replacement will be done at no charge. This will be covered under the normal warranty process. How Remedy Component Differs from Recalled Component : N/A Identify How/When Recall Condition was Corrected in Production : Meritor has implemented a containment and corrective action of tooling implementation in their production facility. Recall Schedule : Description of Recall Schedule : Spartan to notify Dealers of the expanded population by week of April 25, 2022 and the owners a week later. Planned Dealer Notification Date : APR 25, 2022 – APR 29, 2022 Planned Owner Notification Date : MAY 02, 2022 – MAY 06, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-899 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Spartan Fire, LLC Submission Date : FEB 18, 2022 NHTSA Recall No. : 21V-899 Manufacturer Recall No. : 21016 Manufacturer Information : Manufacturer Name : Spartan Fire, LLC Address : 1541 Reynolds Road Charlotte MI 48813 Company phone : 517-588-4700 Population : Number of potentially involved : 170 Estimated percentage with defect : 25 % Vehicle Information : Vehicle 1 : 2020-2022 Spartan Fire Gladiator and MetroStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The basis for this recall population is vehicles equipped with a Meritor drive pinion built in a 180 axle series. Meritor provided an affected rear axle serial number list that was cross-referenced with Spartan Fire’s databases to determine the affected population. Quantity 6 – 2020 Gladiator trucks affected. Quantity 10 – 2020 MetroStar trucks affected. Quantity 69 – 2021 Gladiator trucks affected. Quantity 59 – 2021 MetroStar trucks affected. Quantity 9 – 2022 Gladiator trucks affected. Quantity 17 – 2022 MetroStar trucks affected. Production Dates : AUG 20, 2020 – FEB 01, 2022 VIN Range 1 : Begin : 4S9BEFUB8LS419947 End : 4S9CU2D92MC560263 Not sequential Description of Defect : Description of the Defect : Meritor drive pinion 180 series fractured in the spline. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If this condition exists, the fracture of the pinion may hit the brake drop hose which may unintentionally apply parking brake without detection or brake lights coming on, possibly resulting in a crash. Description of the Cause : There was a variation in the pinion spline tooling geometry of the Meritor process. Part 573 Safety Recall Report 21V-899 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Identification of Any Warning that can Occur : The issue could occur without warning. Involved Components : Component Name 1 : Rear Axle Carrier Component Description : Pinion Shaft Component Part Number : 180 Series Supplier Identification : Component Manufacturer Name : Meritor Address : 22021 Skyway Church Rd Maxton North Carolina 28364 Country : United States Chronology : June 2020 – Pinion crack found on campus in Charlotte during a different PSR. August – September 2020 – They completed tests to attempt to replicate and could not reproduce the fracture. Implemented 100% mag particle inspection on all 186R series. Meritor Product Engineering provided a high confidence level that this would be an infancy failure (during the carriers first high load event) due to the fracture signature. April 2021 – Claim created through standard warranty process for pinion crack. July 2021 – Pinion failure during delivery to the dealer from the plant. Facilitated warranty claim through Meritor, they provided new gear set. September 2021 – Houston reached out regarding a pinion crack failure while in service (24 hours in service and under 3,000 miles), was second truck of fleet with similar failure. Pinion broke off and damaged the spring brake air supply line. Metro and Houston insisted an inspection method to validate that the rest of the fleet do not have the same failures. This resulted in Meritor completing an on-site ultrasonic test for the rest of the fleet. Meritor provided corrective action and containment dates, as well as their assessment that this issue is low risk. October 2021 – Spartan risk assessment completed. October – November 2021 – Reviewed past precedence. Reached out to all REV Fire businesses to check for any Meritor pinion warranty issues. E-One had one failure in the field in October 2021 but a different axle series affected. Met with Meritor to review the cause again and the potential affected population. November 10, 2021 – Escalated the issue to REV Group Management. Part 573 Safety Recall Report 21V-899 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 November 15, 2021 – REV’s senior leadership approved a voluntary recall for this issue. February 14, 2022 – Meritor expanded the date range of affected population. Description of Remedy : Description of Remedy Program : Meritor will conduct an on-site ultrasonic test inspection for the affected population. This will be covered under normal warranty process. Defect units will be replaced at no cost by Meritor. How Remedy Component Differs from Recalled Component : N/A Identify How/When Recall Condition was Corrected in Production : Meritor has implemented containment in their production facility as of April 20, 2021 and corrective action of tooling implementation as of August 2021. Recall Schedule : Description of Recall Schedule : Spartan to notify Dealers by week of January 3, 2022 and the owners a week later. Planned Dealer Notification Date : JAN 03, 2022 – JAN 07, 2022 Planned Owner Notification Date : JAN 10, 2022 – JAN 14, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-899 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Spartan Fire, LLC Submission Date : MAR 25, 2022 NHTSA Recall No. : 21V-899 Manufacturer Recall No. : 21016 Manufacturer Information : Manufacturer Name : Spartan Fire, LLC Address : 1541 Reynolds Road Charlotte MI 48813 Company phone : 517-588-4700 Population : Number of potentially involved : 170 Estimated percentage with defect : 25 % Vehicle Information : Vehicle 1 : 2020-2022 Spartan Fire Gladiator, MetroStar and FC-94 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The basis for this recall population is vehicles equipped with a Meritor drive pinion built in a 180 axle series. Meritor provided an affected rear axle serial number list that was cross-referenced with Spartan Fire’s databases to determine the affected population. Quantity 6 – 2020 Gladiator trucks affected. Quantity 10 – 2020 MetroStar trucks affected. Quantity 69 – 2021 Gladiator trucks affected. Quantity 59 – 2021 MetroStar trucks affected. Quantity 9 – 2022 Gladiator trucks affected. Quantity 11 – 2022 MetroStar trucks affected. Quantity 6 – 2022 FC-94 trucks affected. Production Dates : AUG 20, 2020 – FEB 01, 2022 VIN Range 1 : Begin : 4S9BEFUB8LS419947 End : 4S9CU2D92MC560263 Not sequential Description of Defect : Description of the Defect : Meritor drive pinion 180 series fractured in the spline. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If this condition exists, the fracture of the pinion may hit the brake drop hose which may unintentionally apply parking brake without detection or brake lights coming on, possibly resulting in a crash. Part 573 Safety Recall Report 21V-899 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Description of the Cause : There was a variation in the pinion spline tooling geometry of the Meritor process. Identification of Any Warning that can Occur : The issue could occur without warning. Involved Components : Component Name 1 : Rear Axle Carrier Component Description : Pinion Shaft Component Part Number : 180 Series Supplier Identification : Component Manufacturer Name : Meritor Address : 22021 Skyway Church Rd Maxton North Carolina 28364 Country : United States Chronology : June 2020 – Pinion crack found on campus in Charlotte during a different PSR. August – September 2020 – They completed tests to attempt to replicate and could not reproduce the fracture. Implemented 100% mag particle inspection on all 186R series. Meritor Product Engineering provided a high confidence level that this would be an infancy failure (during the carriers first high load event) due to the fracture signature. April 2021 – Claim created through standard warranty process for pinion crack. July 2021 – Pinion failure during delivery to the dealer from the plant. Facilitated warranty claim through Meritor, they provided new gear set. September 2021 – Houston reached out regarding a pinion crack failure while in service (24 hours in service and under 3,000 miles), was second truck of fleet with similar failure. Pinion broke off and damaged the spring brake air supply line. Metro and Houston insisted an inspection method to validate that the rest of the fleet do not have the same failures. This resulted in Meritor completing an on-site ultrasonic test for the rest of the fleet. Meritor provided corrective action and containment dates, as well as their assessment that this issue is low risk. October 2021 – Spartan risk assessment completed. October – November 2021 – Reviewed past precedence. Reached out to all REV Fire businesses to check for any Meritor pinion warranty issues. E-One had one failure in the field in October 2021 but a different axle series affected. Met with Meritor to review the cause again and the potential affected population. Part 573 Safety Recall Report 21V-899 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 November 10, 2021 – Escalated the issue to REV Group Management. November 15, 2021 – REV’s senior leadership approved a voluntary recall for this issue. February 14, 2022 – Meritor expanded the date range of affected population. Description of Remedy : Description of Remedy Program : Meritor will work with the customer and repair facility to determine if the vehicle is affected. If repair is needed, the Differential Carrier Assembly will be replaced. The replacement will be done at no charge. This will be covered under the normal warranty process. How Remedy Component Differs from Recalled Component : N/A Identify How/When Recall Condition was Corrected in Production : Meritor has implemented a corrective action of tooling implementation in their production facility as of August 2021. Recall Schedule : Description of Recall Schedule : Spartan to notify Dealers by week of March 28, 2022 and the owners a week later. Planned Dealer Notification Date : MAR 28, 2022 – APR 01, 2022 Planned Owner Notification Date : APR 04, 2022 – APR 15, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 21V-899 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Spartan Fire, LLC Submission Date : NOV 18, 2021 NHTSA Recall No. : 21V-899 Manufacturer Recall No. : 21016 Manufacturer Information : Manufacturer Name : Spartan Fire, LLC Address : 1541 Reynolds Road Charlotte MI 48813 Company phone : 517-588-4700 Population : Number of potentially involved : 57 Estimated percentage with defect : 25 % Vehicle Information : Vehicle 1 : 2021-2022 Spartan Fire Gladiator, MetroStar and MetroStar-RT Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The basis for this recall population is vehicles equipped with a Meritor drive pinion built in a 180 axle series. Meritor provided an affected rear axle serial number list that was cross-referenced with Spartan Fire’s databases to determine the affected population. Production Dates : FEB 10, 2021 – AUG 05, 2021 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : Meritor drive pinion 180 series fractured in the spline. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If this condition exists, the fracture of the pinion may hit the brake drop hose which may unintentionally apply parking brake without detection or brake lights coming on, possibly resulting in a crash. Description of the Cause : There was a variation in the pinion spline tooling geometry of the Meritor process. Identification of Any Warning that can Occur : The issue could occur without warning. Involved Components : Part 573 Safety Recall Report 21V-899 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Rear Axle Carrier Component Description : Pinion Shaft Component Part Number : 180 Series Supplier Identification : Component Manufacturer Name : Meritor Address : 22021 Skyway Church Rd Maxton North Carolina 28364 Country : United States Chronology : June 2020 – Pinion crack found on campus in Charlotte during a different PSR. August – September 2020 – They completed tests to attempt to replicate and could not reproduce the fracture. Implemented 100% mag particle inspection on all 186R series. Meritor Product Engineering provided a high confidence level that this would be an infancy failure (during the carriers first high load event) due to the fracture signature. April 2021 – Claim created through standard warranty process for pinion crack. July 2021 – Pinion failure during delivery to the dealer from the plant. Facilitated warranty claim through Meritor, they provided new gear set. September 2021 – Houston reached out regarding a pinion crack failure while in service (24 hours in service and under 3,000 miles), was second truck of fleet with similar failure. Pinion broke off and damaged the spring brake air supply line. Metro and Houston insisted an inspection method to validate that the rest of the fleet do not have the same failures. This resulted in Meritor completing an on-site ultrasonic test for the rest of the fleet. Meritor provided corrective action and containment dates, as well as their assessment that this issue is low risk. October 2021 – Spartan risk assessment completed. October – November 2021 – Reviewed past precedence. Reached out to all REV Fire businesses to check for any Meritor pinion warranty issues. E-One had one failure in the field in October 2021 but a different axle series affected. Met with Meritor to review the cause again and the potential affected population. November 10, 2021 – Escalated the issue to REV Group Management. November 15, 2021 – REV’s senior leadership approved a voluntary recall for this issue. Part 573 Safety Recall Report 21V-899 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : Meritor will conduct an on-site ultrasonic test inspection for the affected population. This will be covered under normal warranty process. Defect units will be replaced at no cost by Meritor. How Remedy Component Differs from Recalled Component : N/A Identify How/When Recall Condition was Corrected in Production : Meritor has implemented containment in their production facility as of April 20, 2021 and corrective action of tooling implementation as of August 2021. Recall Schedule : Description of Recall Schedule : Spartan to notify Dealers by week of January 3, 2022 and the owners a week later. Planned Dealer Notification Date : JAN 03, 2022 – JAN 07, 2022 Planned Owner Notification Date : JAN 10, 2022 – JAN 14, 2022 * NR – Not Reported

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